Rapid coffee maker



Jan. 3, 1950 J. MINERVA ETAL 2,493,306

RAPID COFFEE MAKER Filed March 19, 1946 INVENTOR. [,1 JOHN M/NEEV/Patented Jan. 3, 1950 UNITED STATES 1 PATENT OFFlCE mm man in NrYassignors to Pressure Coflee Maker's Corporation, New York, N. Y., acorporation of New York 1 Claim.

This invention relates to coflee making devices and in particular to apot in which the brew may be made quickly and properly.

A particular object of the invention is to provide a coffee pot of suchstructure that the-water will pass through the coffee but once andthoroughly brew therefrom all of the essentials that contribute to thefull flavor of the coffee without extracting the objectionable oils thatproduce the rancid flavor detrimental to a good cup' of cofiee.

Further objects of the invention include the construction of a pot inwhich the steam is sealed so that it will exert pressure to force thecoflee into the dispensing portion of the device in such a manner thatthe coflee can not return through the coffee grounds, but will be readyfor pouring, to provide a pot structure of novel form in which the heatfrom the steam within the lower portion of the device will keep thebrewed coffee hot until poured; to prevent boiling of the coffee evenshould the pot be left over a flame; and to provide a pot structure thatwill quickly make coffee with full strength and one which can be used byanyone without coifee making experience.

With these and other objects in view, the invention comprises certainconstructions herein after described and then particularly pointed outin the claims and a preferred embodiment of our invention is illustratedin the accompanying drawings, in which:

Figure 1 is a viewin elevation of a coflee pot constructed in accordancewith our invention, parts thereof being broken awayto show the interiorconstruction thereof,

Figure 2 is an enlarged fragmentary section showing the means forjoining the parts of the device together,

Figure 3 is a section on the line 3-4 of Figure Figure 4 is a section onthe line 4-4 of Figure Figure5isasectiononthelineS-Iof Figure 6 is afragmentary section showing a detail of the locking means employed injoining the parts of the device together, and

Figure 7 is a side view of a part of the pot shown partly in section andillustrating a modiflcation of the structure.

Referring to the drawings in detail ll indicates the cylindrical body ofa pot, closed at the upper end by a cap ll, having a finger knob l2attached thereto, and carrying at one side a handle l3 diametricallyopposite a pouring spout l4 in register with pour holes II in the wallof the pot.

Figure any suitable manner to the outer periphery of an upper. ring ithaving a depending flange l1, bevelled as at I8, and shouldered as at I!to provide a support for the bottomplate '2. which is soldered orotherwise secured therein to provide a leakproof joint. The plate 20 isprovided with a concentric opening in which is secured by a leakproofjoint the lower end of an upper tube 2|, whose upper end is providedwith an annular ridge 22 for supporting a cap 23 having an openingtherein, and a perforated ring 24. The ring has fixed thereto in arolled edge thereof, the dome 25 so that as the coflee comes up throughthe tube 2| it willpass through the cap 23 and spill through theperforations 26 in the ring 24. The entire area of the pot body It withthe exception of the space occupied by the tube 2l holds coffee that hasbeen brewed, and once the cofiee has entered the. pot body it cannotreturn is secured to the outer wall of the boiler 36 or bottom of thepot, as by the screws 31. The up-' per edge of the boiler 36 is formedto provides collar 38 to which is attached as bythe screws or rivets 39annularly spaced lock strips 40 beneath which, spaced lugs 4| formedintegrally with upper ring Ii, engage to securely lock the upper andlower parts of the coffee pot together and to render the same steamtight by frictionally contacting the bevelled surfaces of the upper andlower rings with the opposite sides of the flared rim of the edge 33 ofbasket 32.

In a central opening in the bottom 43 of basket 32 a depending tube 44is secured and extends to a point adjacent the bottom 45 of the waterboiler 36, which bottom is preferably corrugated to increase the heatarea, the upper end of the tube underlying a screen 46 which holds thecoffee, placed in the basket 32 before the body I4 is positioned on thebottom or boiler 36. If desired, the bottoms of the lock strips 40 andthe upper edges of the lugs 4| may be slightly tapered to provide aquick locking and jamming means for securing the parts of the pottogether.

In a modifled form of connecting structure shown in Figure 7 the upperring it, which carries the bottom BI and tray 52 and which isbevelledasatltisiormedtoprovideadependina fiange II which is threaded onits innerperipheryas at II to received the threaded upper edge of thelower ring ll. The inner belevelled edge ll of the lower ring coactswith the bevel ll to frictlonally seal the basket '0 in place, the

- into the coilee receptacle or top of the pot where it is kept hot bythe steam in the lower boiler whieh cannot escape. Y

invention is not to be restricted to the details of construction shownsince various "changes and modifications may be made thereinwithoutdeparting from the scope of the 'lv'ention orsacrificing theadvantages derived mm is 1 a we claim is:

A'fcoffee making device for the rapid brewing' oi cofiee comprisingan'upper receptacle for brewed coflee, a plate closing the bottomthereof and having a concentric opening therein, a tube mounted in saidplate'opening and extendi'ng axially of the receptacle to a point nearthe top 'thereof, a dome over the upper end of said tube for deflectingbrewed cofiee from the tube into said receptacle, an upper ring securedto the lower edge of said-receptacle and presenting a depending bevelledflange providing a shoulder with such said plate is connected inleak-proof aseasoe relation and annularly spaced lugs presentingbevelled portions, a boiler having an open upper end for receiving thelower end of said receptacle, a lowerring secured to the inner wall ofthe boiler adjacent the upper end thereof and presenting aninnerbevellededge a cofiee basket having an upper outwardly flared edge adapted to besupported on the bevelled edge of said lower ring, and be held thereonby contact of the bevelled flange of said upper ring therewith,annularly spaced lock strips having bevelled under faces, fixed ontheinner wall of said boiler in spaced vertical relation with said lowerring and adapted to forcibly engage said lugs when the upper receptacleand the boiler are assembled with a relative turning movement to clampthe flared edge of said basket between said upper and lower rings toprovide a steam tight joint, coflee screens in said basket and a waterinlet tube depending from the bottom of said basket to a point adjacentthe bottom of said boiler.

JOHN MINERVA. MICHAEL LOPEZ.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 129,882 Behringer July 30, 18721,035,099 Paone Aug. 6, 1912 1,171,022 Ciletti Feb. 8, 1916 FOREIGNPATENTS Number Country Date 309,250 taly -c- July 30, 1933 712,049France July 13, 1931 839,466 France Jan 4, 1939

